1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
|
/**CFile****************************************************************
FileName [wlcStdin.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Verilog parser.]
Synopsis [stdin processing for STM interface.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - August 22, 2014.]
Revision [$Id: wlcStdin.c,v 1.00 2014/09/12 00:00:00 alanmi Exp $]
***********************************************************************/
#include "wlc.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Converts a bit-string into a number in a given radix.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Wlc_ComputeSum( char * pRes, char * pAdd, int nBits, int Radix )
{
char Carry = 0; int i;
for ( i = 0; i < nBits; i++ )
{
char Sum = pRes[i] + pAdd[i] + Carry;
if ( Sum >= Radix )
{
Sum -= Radix;
Carry = 1;
}
else
Carry = 0;
assert( Sum >= 0 && Sum < Radix );
pRes[i] = Sum;
}
assert( Carry == 0 );
}
Vec_Str_t * Wlc_ConvertToRadix( unsigned * pBits, int Start, int nBits, int Radix )
{
Vec_Str_t * vRes = Vec_StrStart( nBits );
Vec_Str_t * vSum = Vec_StrStart( nBits );
char * pRes = Vec_StrArray( vRes );
char * pSum = Vec_StrArray( vSum ); int i;
assert( Radix >= 2 && Radix < 36 );
pSum[0] = 1;
// compute number
for ( i = 0; i < nBits; i++ )
{
if ( Abc_InfoHasBit(pBits, Start + i) )
Wlc_ComputeSum( pRes, pSum, nBits, Radix );
if ( i < nBits - 1 )
Wlc_ComputeSum( pSum, pSum, nBits, Radix );
}
Vec_StrFree( vSum );
// remove zeros
for ( i = nBits - 1; i >= 0; i-- )
if ( pRes[i] )
break;
Vec_StrShrink( vRes, i+1 );
// convert to chars
for ( ; i >= 0; i-- )
{
if ( pRes[i] < 10 )
pRes[i] += '0';
else
pRes[i] += 'a' - 10;
}
Vec_StrReverseOrder( vRes );
if ( Vec_StrSize(vRes) == 0 )
Vec_StrPush( vRes, '0' );
Vec_StrPush( vRes, '\0' );
return vRes;
}
/**Function*************************************************************
Synopsis [Report results.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Wlc_NtkReport( Wlc_Ntk_t * p, Abc_Cex_t * pCex, char * pName, int Radix )
{
Vec_Str_t * vNum;
int i, NameId, Name, Start = -1, nBits = -1;
assert( pCex->nRegs == 0 );
// get the name ID
NameId = Abc_NamStrFind( p->pManName, pName );
if ( NameId <= 0 )
{
printf( "Cannot find \"%s\" among nodes of the network.\n", pName );
return;
}
// get the primary input
Vec_IntForEachEntryTriple( &p->vValues, Name, Start, nBits, i )
if ( Name == NameId )
break;
// find the PI
if ( i == Vec_IntSize(&p->vValues) )
{
printf( "Cannot find \"%s\" among primary inputs of the network.\n", pName );
return;
}
// print value
assert( Radix == 2 || Radix == 10 || Radix == 16 );
vNum = Wlc_ConvertToRadix( pCex->pData, Start, nBits, Radix );
printf( "((%s %s%s))\n", pName, Radix == 16 ? "#x" : (Radix == 2 ? "#b" : ""), Vec_StrArray(vNum) );
Vec_StrFree( vNum );
}
/**Function********************************************************************
Synopsis [Reads stdin and stops when "(check-sat)" is observed.]
Description []
SideEffects []
SeeAlso []
******************************************************************************/
static inline int Wlc_StdinCollectStop( Vec_Str_t * vInput, char * pLine, int LineSize )
{
char * pStr = Vec_StrArray(vInput) + Vec_StrSize(vInput) - LineSize;
if ( Vec_StrSize(vInput) < LineSize )
return 0;
return !strncmp( pStr, pLine, LineSize );
}
Vec_Str_t * Wlc_StdinCollectProblem( char * pDir )
{
int c, DirSize = strlen(pDir);
Vec_Str_t * vInput = Vec_StrAlloc( 1000 );
while ( (c = fgetc(stdin)) != EOF )
{
Vec_StrPush( vInput, (char)c );
if ( c == ')' && Wlc_StdinCollectStop(vInput, pDir, DirSize) )
break;
}
Vec_StrPush( vInput, '\0' );
return vInput;
}
Vec_Str_t * Wlc_StdinCollectQuery()
{
int c, Count = 0, fSomeInput = 0;
Vec_Str_t * vInput = Vec_StrAlloc( 1000 );
while ( (c = fgetc(stdin)) != EOF )
{
Vec_StrPush( vInput, (char)c );
if ( c == '(' )
Count++, fSomeInput = 1;
else if ( c == ')' )
Count--;
if ( Count == 0 && fSomeInput )
break;
}
if ( c == EOF )
Vec_StrFreeP( &vInput );
else
Vec_StrPush( vInput, '\0' );
return vInput;
}
int Wlc_StdinProcessSmt( Abc_Frame_t * pAbc, char * pCmd )
{
// collect stdin until (check-sat)
Vec_Str_t * vInput = Wlc_StdinCollectProblem( "(check-sat)" );
// parse input
Wlc_Ntk_t * pNtk = Wlc_ReadSmtBuffer( "top", Vec_StrArray(vInput), Vec_StrArray(vInput) + Vec_StrSize(vInput), 0, 0 );
Vec_StrFree( vInput );
// install current network
Wlc_SetNtk( pAbc, pNtk );
// execute command
if ( Cmd_CommandExecute(pAbc, pCmd) )
{
Abc_Print( 1, "Something did not work out with the command \"%s\".\n", pCmd );
return 0;
}
// solver finished
if ( Abc_FrameReadProbStatus(pAbc) == -1 )
printf( "undecided\n" );
else if ( Abc_FrameReadProbStatus(pAbc) == 1 )
printf( "unsat\n" );
else if ( Abc_FrameReadProbStatus(pAbc) == 0 )
printf( "sat\n" );
else assert( 0 );
fflush( stdout );
// wait for stdin for give directions
while ( (vInput = Wlc_StdinCollectQuery()) != NULL )
{
char * pName = strtok( Vec_StrArray(vInput), " \n\t\r()" );
// check directive
if ( strcmp(pName, "get-value") )
{
Abc_Print( 1, "ABC is expecting \"get-value\" in a follow-up input of the satisfiable problem.\n" );
Vec_StrFree( vInput );
return 0;
}
// check status
if ( Abc_FrameReadProbStatus(pAbc) != 0 )
{
Abc_Print( 1, "ABC received a follow-up input for a problem that is not known to be satisfiable.\n" );
Vec_StrFree( vInput );
return 0;
}
// get the variable number
pName = strtok( NULL, "() \n\t\r" );
// get the counter-example
if ( Abc_FrameReadCex(pAbc) == NULL )
{
Abc_Print( 1, "ABC does not have a counter-example available to process a \"get-value\" request.\n" );
Vec_StrFree( vInput );
return 0;
}
// report value of this variable
Wlc_NtkReport( (Wlc_Ntk_t *)pAbc->pAbcWlc, (Abc_Cex_t *)Abc_FrameReadCex(pAbc), pName, 16 );
Vec_StrFree( vInput );
fflush( stdout );
}
return 1;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
|
